✓ In season — great time to go

Green Lake Trek in May

Weather, temperatures, packing and honest advice — from the team that runs this trail.

The quick answer

Yes — May is one of the best months for the Green Lake trek. It falls squarely in the trail's prime season (Apr, May, Oct, Nov). The trek runs 11 days from Lachen, North Sikkim, reaching 16,000 ft at its highest point, and is graded Difficult (5/5). The fee is ₹34,999 + 5% GST with permits, meals, camping and certified trek leaders included.

Weather & trail conditions in May

Long, warm days with clear mornings; afternoon clouds are common at altitude. Snow bridges melt out, streams run high with meltwater, and the high passes open for the season. On Green Lake, expect daytime temperatures around 15°C on the trail and roughly -1°C at the highest camps after dark in May.

May in the Himalayas

Daytime

~15°C

Night at camp

~-1°C

Highest point

16,000 ft

Grade

Difficult

What to pack for May

✓ Quick-dry trek tees and one warm layer for altitude nights
✓ A light rain layer for afternoon showers
✓ Sun protection — cap, sunglasses, SPF 50 sunscreen
✓ Electrolytes: warm days mean higher fluid loss

Don't own the gear? Rent shoes, jackets and more on our rentals page — sanitised after every trek.

Booking notes for May

Peak family season on beginner treks; book 6–8 weeks ahead for group spots. The best months for Green Lake are Apr, May, Oct, Nov.

Frequently asked

Is May a good time for the Green Lake trek?

Yes — May is one of the best months for the Green Lake trek. It falls squarely in the trail's prime season (Apr, May, Oct, Nov).

How cold is Green Lake in May?

Plan for daytime temperatures around 15°C and nights near -1°C at the higher camps. Our sleeping bags are rated for well below these temperatures.

Can beginners do Green Lake in May?

Green Lake is graded Difficult (5/5), so we recommend at least one prior Himalayan trek. Beginners should start with Nag Tibba, Dayara Bugyal or Kedarkantha instead.